Yokogawa PSCAIAAN Critical Analog Input Module

Technical Dossier

Product Details And Specifications

Yokogawa PSCA Series Technical Notes

The Yokogawa PSCA series represents a family of critical analog input modules engineered for deployment within Yokogawa's CENTUM VP and CS 3000 Distributed Control Systems (DCS). These modules occupy a foundational role in process measurement infrastructure across global heavy industry sectors, including petrochemical refineries, nuclear power generation facilities, offshore oil and gas platforms, and large-scale chemical processing plants. The PSCA series is designed to interface directly with field instruments — thermocouples, RTDs, pressure transmitters, and flow sensors — converting analog signals into digital process values for the DCS controller. Installed base counts for CENTUM VP and CS 3000 systems number in the tens of thousands of units worldwide, making PSCA series modules among the most strategically critical spare parts in any plant's MRO inventory.

PSCA Series Full Catalog & Functionalities (SKU List)

The following SKUs represent the verified PSCA series module range. Each entry is classified by functional category and includes a concise technical descriptor.

Analog Input Modules (AI)

• PSCAIAAN: 16-channel universal analog input module, 4–20 mA / 1–5 V, HART-compatible, standard accuracy class.
• PSCAIABN: 16-channel analog input module with enhanced noise rejection, optimized for high-EMI field environments.
• PSCAIACN: 16-channel analog input, extended temperature range variant for extreme ambient conditions.
• PSCAIADN: 8-channel high-accuracy analog input module, 0.1% FS accuracy, for precision measurement loops.
• PSCAIAEN: 16-channel analog input with integrated HART multiplexer for asset management integration.
• PSCAIAFN: 16-channel analog input, SIL 2-rated variant for safety instrumented system (SIS) applications.
• PSCAIAGN: 32-channel high-density analog input module, reduced footprint for space-constrained marshalling cabinets.
• PSCAIAHN: 16-channel thermocouple input module, supports J, K, T, E, R, S, B type thermocouples with CJC.
• PSCAIAIN: 16-channel RTD input module, supports Pt100, Pt1000, Ni100 resistance temperature detectors.
• PSCAIAJN: 16-channel millivolt input module for direct connection to strain gauges and load cells.

Analog Output Modules (AO)

• PSCAOAAN: 8-channel analog output module, 4–20 mA, HART-compatible, for control valve and positioner loops.
• PSCAOABN: 8-channel analog output, SIL 2-rated, for safety shutdown valve applications.
• PSCAOACN: 16-channel analog output, high-density configuration for large regulatory control applications.

Digital Input / Output Modules (DI/DO)

• PSCDIDAAN: 32-channel digital input module, 24 VDC, for discrete field device status monitoring.
• PSCDODAAN: 32-channel digital output module, 24 VDC, relay-isolated, for solenoid valve and motor starter control.

Communication & Power Modules

• PSCPWRAN: Redundant power supply module for PSCA I/O node, 24 VDC input, hot-swap capable.
• PSCBUSAAN: Vnet/IP communication adapter module for PSCA node-to-controller backplane interface.